Patents by Inventor Roger Flavius Cox

Roger Flavius Cox has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Phase shifting sound effects circuit
    Patent number: 4108041
    Abstract: A sound effect circuit with a phase shifter producing a signal shifted in phase with respect to an input signal, a combining circuit for arithmetically combining the input and phase shifted signals to produce an output signal, an oscillator for periodically modulating a characteristic frequency of the phase shifter and a modulation control circuit. The modulation control circuit causes the modulation rate to gradually increase when modulation is manually switched on and to gradually decrease when modulation is switched off. The modulation control also causes the characteristic frequency to vary inversely with the modulation rate.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: August 22, 1978
    Assignee: Norlin Music, Inc.
    Inventors: Robert A. Moog, Roger Flavius Cox